baber/WOPTO huggingface dataset:
Patent GB-744105-A (GB)
Title: A periodically operated electric contacting device
IPC: H02M1/20
Filed: 1953-09-29
Abstract: 744,105. Interrupters. LICENTIA PATENTVERWALTUNGS-GES. Sept. 29, 1953 [Oct. 2, 1952], No. 26728/53. Class 38(5) In a mechanical interrupter, particularly for rectification, a contact bridge 1 biased closed by a spring 2 is operated by a push rod 4, 5 connected to an eccentric 9 on a shaft 10 by a leaf spring 8 so as to prevent lateral displacement of the push rod, at least in the region of the contact 1. The rod 5 is supported by leaf springs 6, 7 and the eccentric is connected by a link 11 and spring 12 to a shaft 13 which is adjustable to vary the duration of make and break. The push rod may be supported by spring 6 only (Fig. 2, not shown) in which case it is connected to eccentric 9 by a short spring 8.
Patent GB-773295-A (GB)
Title: Method of producing a new material from waste leather
IPC: B26D1/00
Filed: 1955-09-19
Abstract: 773,295. Laminated materials. FRIEDMANN, Y. Sept. 19, 1955 [Sept. 21, 1954], No. 26743/55. Drawings to Specification. Class 140. A laminate comprises two or more plies of sheet material sliced spirally, e.g. on a rotary lathe, from a rod or cylinder made by gluing together superposed discs cut from waste leather. The plies are glued or cemented together with the direction of the component leather strips crossing in adjacent plies.
Patent GB-987824-A (GB)
Title: Improvements in or relating to method and apparatus for making twist drills
IPC: B21D11/14
Filed: 1963-07-05
Abstract: 987,824. Making twist drills; twisting. K. L. O'CONNELL, and J. B. O'CONNELL. July 5, 1963 [July 17,1962], No. 26746/63. Headings B3A and B3E. [Also in Division B5] A method of twisting an elongated article comprises heating a narrow transverse zone of the article and continuously advancing the heating zone along the length of the article while twisting. A twist drill blank 38, held at one end in a fixed non-rotary chuck 37, is twisted, by a rotated chuck 35 holding its other end, as a heater 45 is traversed along the blank 38. The heater 45, which may be an annular flame heater or an induction heater is supported on a carriage 41 together with a water-cooled back stop 46 which restricts the heating area. The carriage 41 is moved along rods 42, 43 by means of an adjustable inclined cam track 68 engaging a roller 69 on the carriage 41 and supported on a carriage 51 moved transversely along guide rods 52, 53 by a threaded shaft 60 driven from means rotating the chuck 35. The carriage 51 may be disengaged from the shaft 60 by turning a half-round bar 63 to lift a spring- urged clutch bar 57 from the shaft 60. Both chucks 35, 37 could be rotated, one faster than the other. The blank may have two off-centre passages 28, 29 bored therethrough before twisting. It may be rectilinearly fluted before twisting or helically fluted after twisting. A long twisted blank may cut in two to provide two drills. Two blanks may be butt-welded, twisted and then cut in the middle.
Patent GB-322229-A (GB)
Title: Improvements in or relating to trap nest fronts for example for poultry and like houses and runs
IPC: A01K31/16
Filed: 1928-09-18
Abstract: 322,229. Yates, D. H. Sept. 18, 1928. Trap nests.-A trap nest front for poultry or similar houses or runs consists of guides 5 within which a shutter 6 can slide vertically. The guides are connected by transverse members 2, 3. The shutter carries one or more roughened pegs 11 and a spring blade 10 secured to one of the guides and extending horizontally in front of the shutter can be bent to engage under one of such pegs to hold the shutter in its raised position. When a fowl enters the nest the shock caused by its tail brushing the shutter causes the spring to free itself from the pin, thus permitting the shutter to fall. The spring is engaged under one or other of the pins according to the size of the birds to be dealt with, and to give further variation the shutter may be inverted in its slides. One pin may be provided for fitting into any one of a series of holes in the shutter. In a modification the shutter may be provided with recesses adapted to be engaged by a projection on the spring blade.
Patent GB-1217687-A (GB)
Title: New reactive dyestuffs
Inventor: BUDZIAREK RICHARD
IPC: C09B62/085
Filed: 1967-06-09
Abstract: 1,217,687. Reactive dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 31 May, 1968 [9 June, 1967], No. 26795/67. Heading C4P. The invention comprises reactive dyes of the general formula wherein Py is a 1-aryl-5-pyrazolone coupling component linked to the -N = N-group in the 4-position and having the -NHZ group in the 1-aryl radical and each Z is a reactive group (i.e. a group which forms a covalent link with the hydroxyl groups of cellulose). Preferred dyes have the general formula wherein Q is CH 3  or COOH, X is H or CH 3 , Y is H or SO 3 H and R 1  and R 2  are aniline radicals optionally substituted by CH 3 , COOH and/or S0 3 H, but other reactive groups are specified. They are prepared by (a) diazotization and coupling or (b) by reacting the corresponding diaminoazo dye or monoaminoazo dye already bearing a triazinylamino group with a chlorotriazine. The triazine rings in addition to having a chlorine atom may be further substituted, e.g. by reacting a dichlorotriazine with ammonia or a primary or secondary amine. The dyes give yellow shades on cotton and viscose.
Patent GB-1339766-A (GB)
Title: Photosensitive heat-processable photographic materials
IPC: G03C1/498
Filed: 1971-04-19
Abstract: 1339766 Photo-sensitive, heat-processable photographic materials EASTMAN KODAK CO 19 April 1971 [9 April 1970] 26873/71 Heading G2C Photo-sensitive, heat-processable photographic materials contain in a layer or layers on a support, (i) a light-insensitive reducible metal compound such as silver behenate and an organic reducing agent therefor such as a silver halide developing agent, e.g. 4-phenyl-catechol; ii) a photo-sensitive silver compound, e.g. a silver halide or a silver-dye complex; and iii) a silver halide development-inhibitor-releasing (DIR) compound which is capable of releasing the development inhibitor on heating, e.g. a colour coupler or a developing agent containing a releasable mercapto residue. Preferred DIR compounds are of the formula:- where R<SP>1</SP> is substituted or unsubstituted alkyl or aryl and R<SP>2</SP> is the residue of a colour coupler or a silver halide developing agent. A phthalazinone toner and a sensitizing dye may also be present. When a DIR developing agent is used, this may act as both DIR compound and as organic reducing agent, and when impure (lightsensitive) silver behenate is used, a separate photo-sensitive silver compound is not necessary. The materials give a visible image on photographic exposure and overall heating.
Patent GB-482830-A (GB)
Title: Improvements in or relating to a machine for manufacturing finned tubing
IPC: B21D53/08
Filed: 1936-10-05
Abstract: 482,830. Making finned tubing. STEVENS, A. H. (Peerless Ice Machine Co., and Kelvinator Corporation) Oct. 5, 1936, No. 27011. [Classes 83 (ii) and 83 (iv)] Jointing by stamping.-Fins 1 are automatically spaced and fixed on tubing by reflattening the dished metal 3 surrounding the central hole so that the undished edge is pressed into the metal of the tube 2 as in Figs. 2 and 3. A stack of fins 1a are assembled on the tube which is engaged by a tube moving clamp 135. Cams operate opposing knives 95 and 95a to move towards the tube and separate a single fin from the stack, while a fin feeder, Fig. 13, moves to grip the fin and move it to position between the undishing anvils 26, 27 which now close together and move axially to fix the fin on the tube while the fin feeder fingers 101 slip off the fin and move back to position to receive the next fin. The anvils then separate by springs. Then the cam 8, Fig. 5, and its connections of lever 20, pull-rod 23, pawl lever 59, pawl 56, ratchet 55, shaft 54, and sprockets, moves the chains 50, 50a and the tube gripping clamp 135 thereon so that the amount of movement of the tube clamp determines the fin spacing. The spacing can be selected by handle 61 and a shiftable pawl selector bar 57. The tube may be left unfinned for a certain length, e.g. to allow for bending, by providing a mercury-tube switch 79 operated by a cam 77 on the timing chain 75 whereby a circuit is maintained to a solenoid 39 the lever 40 of which covers a hole 37 in the machine frame so that the stub end 36 of a lever cannot enter and is the fin feeder travel assembly is limited and all the tube is fed without being finned. Defectively placed fins may be removed by a shifting handle 61 to disengage pawls 56 thereby allowing the chains 50, 50a to be moved by handwheel 74 so bringing the defective fin portion outside the affixing part of the machine so that they may be cut off the tube. After removal the tubing is moved back to proper position where new fins may be affixed. The stack of fins are urged forward by a pusher 118 urged by a cable and weight. The tube moving clamp is adjustably mounted on the chains 50 to allow manual timing and spacing for special spaced coils.
Patent GB-171845-A (GB)
Title: Improvements in supports for hats and the like for attachment to the backs of chairsand like seats
IPC: A47C7/64
Filed: 1920-09-23
Abstract: 171,845. Probert, W. Sept. 23, 1920. Hooks fixed to flat surfaces. - A clothes-hook attachable to the backs of chairs &c., for use in cinemas, theatres, &c., comprises a metal base 4 with flanged edges 5, which contains a leafspring 11, and a bent wire peg 7, the ends 8, 9 of which project inwardly through the flanges 5 behind the leaf-spring. The end 9 has an inturned portion 12 at right-angles to itself which bears against the leaf-spring when the hook is turned outwards. A. slight sideways pressure causes the hook 7 to fold into the plane of the base-plate or vice versa. A soft covering 10 of rubber &c. is provided at the point of the hook.
Patent GB-1329975-A (GB)
Title: Drill chucks
IPC: B23B31/12
Filed: 1970-06-05
Abstract: 1329975 Chucks ROBERT BOSCH GmbH 5 June 1970 [7 June 1969] 27137/70 Heading B3B A drill chuck comprises a cylindrical body 1, a housing 10 and at least two jaws 18 which are spring supported against an interior conical surface of the housing and biased axially upwardly against a clamping plate 7 axially fixed to the body 1 and having a surface perpendicular to the chuck axis, axial movement of the housing 10 on the body altering the position of the jaws to grip a drill, characterized in that the housing 10 is axially movable when in a predetermined rotational position to provide a coarse adjustment for opening and closing the jaws, and at least part of the housing is rotationally displaceable on the body to adjust a clamping thread means to tighten and slacken the jaws. In the embodiment of Fig. 1 an end portion 4 of the body is threaded to engage the threaded radially inner ends of a pair of projections 13 of the housing, and is also provided with two longitudinal slots with which the projections 13 can be aligned to allow the coarse adjustment. The jaws are tightened slightly less than one half a revolution of the housing. The housing may be rotated by a bevel gear key. In a further embodiment (Figs. 3, 3a, 4, not shown) the housing is in two parts threaded together, a lower part being rotated to tighten the jaws. The upper half includes spring-biased pins that engage a series of steps formed in a wedge shaped cut-out in the body. In an alternative arrangement (Figs. 5 and 6, not shown) coarse adjustment is provided by balls engaging sloping ramps formed in the body, and annular grooves formed in an upper part of the housing grip the said part to the body to allow a lower part to be rotated to effect the clamping means to be tightened. The body 1 is fixed to a spindle by a threaded bore 2a.
Patent GB-161212-A (GB)
Title: Improvements in methods and means for covering metal cores in the manufacture of electrodes
IPC: B23K35/40
Filed: 1919-11-04
Abstract: 161,212. Booms, W. H., and Darge, W. Nov. 4,1919. Extrusion, machines.- In the manufacture of of electrodes for welding metals and for like purposes by coating rods or wires with flux and thread, the rods are introduced into a chamber containing the flux, are covered with wire by rotating bobbins, and are cut off and dried. Fig. 1 shows a machine comprising two containers b for the flux, which is kept stirred. Passages i conduct the flux to the coating-chamber d, into which the wires x are introduced by feed-rollers. A pulley f rotating on ball bearings e carries round the bobbins h, the thread passing over tension bars m and through slots n to the nozzle o, in which the core is covered by the thread. The covered wires are then cut into lengths and dried.
Patent GB-463691-A (GB)
Title: Improvements in and relating to ammunition magazines for small arms, light automatic guns, or the like
IPC: F41A9/68
Filed: 1935-10-02
Abstract: 463,691. Cartridge magazines for automatic guns. BLACKER, L. V. S. Oct. 2,1935, No.27172. [Class 92 (ii)] An ammunition magazine for automatic guns comprises a cylindrical or conical container having a plurality of cartridge-carrying rotors therein or a plurality of containers each containing one or more rotors, means being provided to'operate the rotors in sequence so as to carry the cartridges bodily out of the container and eject them in sequence through an outlet in the container wall. In the construction shown in Fig. 1, the rotors b, c, in the container a are each provided with projections e between which the cartridges d are carried. The outer rotor b has axially arranged hollow end pieces b<1> which are journalled in the end walls of the casing and which fit around the ends of a shaft c<1> to which the inner rotor is secured. A spring f connected to the shaft c<1> and to the outer rotor, and a spring g connected to an end b<1> of the outer rotor and the casing, control the movements of the rotor and are stressed by the rotation of winged grips f<1>, f<2> on the rotor shafts when the magazine is being loaded. Pawls engaging ratchet teeth f<3>, f4, normally prevent rotation of the rotors. When the magazine is attached to the gun the pawl of the inner rotor is released bv a member which engages with a fixed portion of the gun, and the inner rotor turns to discharge its cartridges through a slot in the outer rotor and a guideway on the casing. A cam on the inner rotor releases the pawl on the outer rotor when the inner rotor is fully discharged. As shown, the magazine may comprise a second container similar to the container a, the inner rotor thereof being released by a cam device on the rotor b when the latter has discharged its cartridges. Alternatively, the two outer rotors may be arranged to operate successively after the successive operations of the inner rotors. In a modification, Figs. 2 and 5, a single spring g<1> connected to the inner rotor is employed to drive the rotors in each casing. In operation, the cartridges d<1>, d<2>, serve to couple the two rotors and the outer rotor first discharges its cartridges through the guide h until a stud s thereon engages with the end of a slot in a lip h<1> formed on the casing. The inner rotor, rotating alone, is then discharged, the last few cartridges being ejected by a spring follower l, which then closes the opening in the container. At this stage, the rotors of the second container are released by a detent n which disconnects a pawl n<1> from a ratchet n<2> on the shaft of the second container, the detent being actuated by a pin m<2> carried by a gear wheel m<1> meshing with a pinion m which is carried by the shaft of the first container, The last few cartridges of the second container are pushed through the guide h by a spring l<1>. Instead of springs, the rotors may be actuated by electric, hydraulic or pneumatic means, or by the movement of components of the gun.
Patent GB-279097-A (GB)
Title: Improvements in electric trolleys for cleaning ducts or conduits
IPC: B60K25/00
Filed: 1927-10-13
Abstract: 279,097. Siemens - Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). Oct. 16, 1926, [Convention date]. Cleaning internally, non-rotary appliances for. -In electricallyactuated trolleys for drawing cables through conduits, which carry an independent rope winch driven by a separate motor, the winch is provided with two rope drums, either of which can be coupled to the motor to wind one end of a rope while the other end is being paid out freely from the uncoupled drum. Fig. 2 shows one construction in which a hand lever 21, carrying a pinion 20 in constant mesh with the motor pinion 19, can be moved to mesh with either of the drum wheels 15, 16, with an intermediate out-of-gear position in which both drums are free. Fig. 4 shows another construction in which the axial movement of the shaft 30, through the medium of the lever 37, couples the pinion 31 alternatively with the internal wheel 34 and the external spur train driving the drum 12. In a further modification, two pinions 31 are provided, one for each coupling action. The winches may be used for pulling cleaning-apparatus 28, Fig. 2, through the conduits.
Patent GB-885049-A (GB)
Title: Bibenzoate polyesters
Inventor: WIELICKI EDWARD ANDREW
IPC: C08G63/185
Filed: 1959-08-10
Abstract: New linear polyesters, suitable for the manufacture of films, fibres, moulded articles and coatings contain the residues of (1) Bibenzoic acid, (2) An aliphatic glycol of formula HO-R-OH wherein R is a straight or branched-chain aliphatic hydrocarbon radical containing 2 to 20 carbon atoms (which may be saturated or unsaturated) and either (3) A hetero-aliphatic glycol with a molecular weight of less than 350 and of formula HO-(R1X)n-R1-OH wherein R1 is a straight- or branched-chain aliphatic hydrocarbon radical containing 2 to 10 carbon atoms, X is an ether oxygen atom or a sulphone radical and n is 1 to 6 or (4) An aromatic glycol of formula HO-(CH2)m-Ar-(CH2)n-OH where Ar is a mono- or di-nuclear aromatic hydrocarbon radical containing 6-12 nuclear carbon atoms and m and n are 1-4.  A large number of glycols are specified.  Polyesterification may be effected by heating a dialkyl benzoate with the mixed glycols in the presence of an ester-interchange catalyst (many specified).  Preferably the glycols are used in a ratio of either (a) 90-10 % mol. of aliphatic glycol to 10-90 % mol. of hetero-aliphatic glycol or (b) 90-20 % mol. of aliphatic glycol to 10-80 % mol. of aromatic glycol.  In example polyesters are made by reacting (1)-(9) Diethyl bibenzoate, ethylene glycol and diethylene glycol; (10)-(13) Diethyl bibenzoate, neopentylene glycol and di- or triethylene glycol; (14)-(18) Diethyl bibenzoate, p-xylylene glycol and ethylene glycol, hexamethylene glycol or neopentylene glycol.
Patent GB-463639-A (GB)
Title: Improvements in or relating to lifting jacks
IPC: B66F5/04
Filed: 1935-10-02
Abstract: 463,639. Lifting-jacks. LAKE & ELLIOT, Ltd., and BARRETT, H. R. Oct. 2, 1935, No. 27218. [Class 78 (iii)] Linkage lifting-jacks are constructed (1) with no parts projecting above the base between the crutch and the operating-handle, (2) with a low initial position of the crutch, and (3) with cam-operated means for imparting an initial lift to the links to assist them over the dead - centre position. In the form shown the crutch 14 is carried by a link 15 pivoted at 16 to the frame and is maintained parallel to the ground during the lifting operation by a pair of levers 17. A pair of levers 23 impose a direct thrust on the links 15 after the initial lift is completed. The reciprocation of a handle 30 operates screw, hydraulic, or lever mechanism 4 whereby axial movement is imparted to a member 5. The latter moves a member 6, which is guided in slots in the base frame and preferably carries ground-engaging wheels 27, against the action of return springs. The initial movement of member 6 causes its cam-shaped face 7 to swing the bifurcated lever 9 pivoted at 10 and thus causes the roller 12 to raise the crutch 14. During this movement a pair of sockets 24 on the member 6 telescope over the ends of the levers 23 until these levers abut the inner ends of the sockets, after which the continued movement of member 6 imparts a direct thrust to the levers. The lower pivots of the levers 15, 17 and one castor wheel 3 are mounted in a box-frame secured to the main frame by bolts.
Patent GB-1017810-A (GB)
Title: Improvements in or relating to the separation of the components of gaseous mixtures produced by the catalytic oxidation of propylene
Filed: 1963-07-10
Abstract: The components of a gaseous mixture containing acrylonitrile and ammonia and resulting from the vapour phase catalytic oxidation of propylene in the presence of ammonia and steam are separated by washing the mixture with an aqueous solution of an " organic acid " having a concentration sufficient to neutralize free ammonia and to produce a solution of the organic components of the mixture, distilling the aqueous solution so obtained under such conditions as to remove the organic components as an overhead distillate and an aqueous solution of substantially undecomposed ammonium salts of the organic acid as base product and thermally decomposing at least part of the base product to liberate ammonia and produce an aqueous solution of the free organic acid.  The " organic acid " is one that is not easily entrained by water and the ammonium salts of which decompose on heating to produce ammonia and water. Specified acids are acetic and citric acids.  The gases leaving the solution during the first distillation may be scrubbed with acid salt before condensation in the upper portion of the column and the components of the overhead fraction which include acrylonitrile, acrolein and acetonitrile may be separated by, for example, fractional distillation.  The ammonia and steam distilled off during the decomposition of the ammonium salt may be recycled to the propylene oxidation and the aqueous organic acid remaining after said distillation may be recycled to the washing step.ALSO:The components of a gaseous mixture containing acrylonitrile, hydrocyanic acid and ammonia and resulting from the vapour phase catalytic oxidation of propylene in the presence of ammonia and steam are separated by washing the mixture with an aqueous solution of an "organic acid" having a concentration sufficient to neutralize free ammonia and to produce a solution of the organic compounds of the mixture, distilling the aqueous solution so obtained under such conditions as to remove the organic components, including hydrocyanic acid, as an overhead distillate and an aqueous solution by substantially undecomposed ammonium salts of the organic acid as base product and thermally decomposing at least part of the base product to liberate ammonia and produce an aqueous solution of the free organic acid. The "organic acid" is one that is not easily entrained by water and the ammonium salts of which decompose on heating to produce ammonia and water.  Specified acids are acetic and citric acids. The gases leaving the solution during the first distillation may be scrubbed with acid salt before condensation in the upper portion of the column and the components of the overhead fraction may be separated by, for example, fractional distillation.